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This paper presents floristic richness of medicinal plants occurring in Górzno-Lidzbark Landscape Park (NE Poland). More important medicinal species were set out in four habitat groups with profile of population resources and evaluation of their dynamic tendencies included. Furthermore, natural and anthropogenic (forest management) factors effecting increase or decrease in these plants’ population resources were pinpointed. Species with large population resources that may be acquired for medicinal reasons from the area of the Park were selected.
This paper presents results of abundance field research, distribution and habitat and phytocoenotic preferences of Trisetum sibiricum on the Gutowo Meadows (Urszulewo Plain, NE Poland), in a locality outside the continuous range of distribution. The species grown in wet, not used meadows, in places overflooded by beavers, partially afforested. The research was carried out in 2013 and the results were compared with analogical data from 2000–2002. Currently a higher abundance of species (circa 1600 tufts), a larger area of the locality (circa 2.5 ha), larger phytosociological spectrum and a larger share of hygrophilous species in species composition of the examined phytocoenoses was revealed. In 2013 a share of Trisetum sibiricum was noted in 12 plant communities from seven classes (Phragmitetea australis, Scheuchzerio-Caricetea nigrae, Bidentetea tripartiti, Molinio-Arrhenatheretea, Artemisietea vulgaris, Alnetea glutinosae and Querco-Fagetea), and in 2000–2002 – only in seven plant communities from three classes (Scheuchzerio-Caricetea nigrae, Molinio-Arrhenatheretea and Artemisietea vulgaris). Formerly the species was listed mainly in phytocoenoses of Angelico-Cirsietum oleracei and currently most often in phytocoenoses of Junco-Molinietum.
110 species of the family Tachinidae were found in the Górzno-Lidzbark Landscape Park. It is 23.4% of their number recorded from Poland. Górzno-Lidzbark Landscape Park is a third or fourth lowland locality of Phorinia aurifrons R.-D., Erythrocera nigripes R.-D., Athrycia impressa WULP., Hemyda obscuripennis MEIG. in Poland.
64 species of three families were found in the Górzno-Lidzbark Landscape Park; they included 31 species of Calliphoridae, 2 species of Rhinophoridae and 31 species of Sarcophagidae, which constitutes for 50%, 24% and 25%, of the number of species recorded from Poland, respectively. Górzno-Lidzbark Landscape Park is the third locality of Miltogramma rutilans MEIG. and Sarcophaga teretirostris PAND. in Poland.
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